606
FZUS51 KBOX 190206
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1005 PM EDT THU JUN 18 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-191500-
1005 PM EDT THU JUN 18 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
GALE AND SMALL CRAFT CONDITIONS WITH A CHANCE OF THUNDERSTORMS INTO
THE EVENING WHICH COULD LEAD TO LOCALLY HIGHER WINDS AND SEAS.
BREEZY CONDITIONS AND ELEVATED SEAS CONTINUE FRI AND SAT ACROSS THE
SRN COASTAL WATERS. ANOTHER COASTAL SYSTEM APPROACHES FROM THE W ON
MONDAY.
ANZ250-191500-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SE 5 FT AT 7 SECONDS AND SW 3 FT AT
4 SECONDS. A SLIGHT CHANCE OF SHOWERS WITH ISOLATED TSTMS.
FRI
W WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS AND SW 2 FT AT 4 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT NIGHT
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W
2 FT AT 4 SECONDS AND NE 1 FOOT AT 6 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. SHOWERS.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-191500-
MASSACHUSETTS BAY AND IPSWICH BAY-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND E 2 FT AT
7 SECONDS.
FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND E 1 FOOT AT
7 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SE 1 FOOT AT
6 SECONDS.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING W 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE
DETAIL: W 2 FT AT 3 SECONDS AND E 1 FOOT AT 6 SECONDS.
SUN
NW WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND N 1 FOOT
AT 4 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
S WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-191500-
CAPE COD BAY-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS.
FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND E 1 FOOT AT 7 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND E 1 FOOT AT
8 SECONDS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: NW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT. SHOWERS LIKELY.
MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 4 FT. SHOWERS LIKELY.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-191500-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1005 PM EDT THU JUN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
7 SECONDS.
FRI
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT
AT 8 SECONDS AND W 3 FT AT 5 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND W 3 FT AT
4 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND S 4 FT AT 8 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE
EVENING. SEAS 4 TO 6 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND W
2 FT AT 4 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: S 3 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. SHOWERS.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-191500-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1005 PM EDT THU JUN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 8 FT. WAVE DETAIL: SW 8 FT AT 7 SECONDS AND SW 5 FT AT
4 SECONDS.
FRI
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND W 4 FT AT 5 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND E 1 FOOT AT
7 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 1 FOOT AT
6 SECONDS.
SAT NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT,
SUBSIDING TO 3 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: SW 6 FT AT
8 SECONDS AND W 4 FT AT 5 SECONDS, BECOMING SW 5 FT AT 8 SECONDS
AND SW 3 FT AT 4 SECONDS.
SUN AND SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 8 SECONDS AND S 1 FOOT AT 4 SECONDS.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 25 TO 30 KT. SEAS 6 TO 9 FT. SHOWERS.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-191500-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1005 PM EDT THU JUN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
7 TO 9 FT, SUBSIDING TO 5 TO 8 FT. WAVE DETAIL: SW 8 FT AT
7 SECONDS AND S 2 FT AT 3 SECONDS, BECOMING S 8 FT AT 8 SECONDS
AND S 2 FT AT 4 SECONDS.
FRI
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND S 3 FT AT 5 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS AND W 1 FOOT AT 7 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS.
SAT NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE
DETAIL: SW 5 FT AT 8 SECONDS AND NW 4 FT AT 5 SECONDS.
SUN AND SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 8 FT. SHOWERS LIKELY.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-191500-
NANTUCKET SOUND-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND E 1 FOOT AT
7 SECONDS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SW 3 FT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: W 4 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND S
2 FT AT 8 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 1 FOOT AT 4 SECONDS AND S 1 FOOT AT 8 SECONDS.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. SHOWERS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-191500-
VINEYARD SOUND-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 2 FT AT
8 SECONDS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND E 1 FOOT AT
8 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 9 SECONDS AND SW 3 FT AT 6 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SW 4 FT AT 8 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT 4 SECONDS AND SW
4 FT AT 6 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. SHOWERS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-191500-
BUZZARDS BAY-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: W 5 FT AT 8 SECONDS AND SW 4 FT AT
6 SECONDS.
FRI
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
3 FT AT 6 SECONDS AND S 2 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT
AT 5 SECONDS AND SW 2 FT AT 8 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND SW 2 FT AT 8 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND S
2 FT AT 8 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 2 FT AT 5 SECONDS AND SW 2 FT AT 6 SECONDS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 4 FT. SHOWERS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-191500-
RHODE ISLAND SOUND-
1005 PM EDT THU JUN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
OVERNIGHT
SW WINDS AROUND 15 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND SE 3 FT AT
8 SECONDS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 2 FT AT 8 SECONDS.
FRI NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT
AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 1 FOOT AT
6 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 5 SECONDS AND SW
5 FT AT 8 SECONDS.
SUN AND SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 6 SECONDS AND SW 3 FT AT 8 SECONDS.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. SHOWERS LIKELY.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-191500-
BLOCK ISLAND SOUND-
1005 PM EDT THU JUN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
OVERNIGHT
W WINDS AROUND 15 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND E 2 FT AT
8 SECONDS.
FRI
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND W 3 FT AT 4 SECONDS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND W 2 FT AT
4 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND S 3 FT AT 8 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 3 FT AT 5 SECONDS AND S 3 FT AT 8 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. SHOWERS.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-191500-
BOSTON HARBOR-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT.
FRI
W WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
2 FT.
FRI NIGHT
W WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. WAVES
AROUND 2 FT.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
2 FT.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES AROUND 2 FT IN
THE EVENING, THEN 1 FOOT OR LESS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. SHOWERS LIKELY.
MON NIGHT
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS
LIKELY.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. SHOWERS LIKELY.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-191500-
NARRAGANSETT BAY-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. WAVES
2 TO 4 FT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO
3 FT.
FRI NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES 2 TO 3 FT.
SAT
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT.
SAT NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
MON
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
4 FT. SHOWERS LIKELY.
MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES
2 TO 4 FT. SHOWERS.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
4 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-191500-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: S 7 FT AT 6 SECONDS AND E 2 FT AT
7 SECONDS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: W 5 FT AT 4 SECONDS AND S 5 FT AT 8 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND S 4 FT AT
8 SECONDS.
SAT
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT
AT 5 SECONDS AND S 3 FT AT 8 SECONDS.
SAT NIGHT
W WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND W
2 FT AT 5 SECONDS.
SUN
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND N 2 FT AT
4 SECONDS.
SUN NIGHT
S WINDS AROUND 5 KT. SEAS AROUND 2 FT.
MON
S WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 4 FT.
A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. SHOWERS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-191500-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
7 SECONDS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND W 4 FT AT 5 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND W 3 FT AT
5 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 1 FOOT AT
13 SECONDS.
SAT NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE
DETAIL: SW 6 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS.
SUN
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT
8 SECONDS AND N 2 FT AT 4 SECONDS.
SUN NIGHT
SW WINDS AROUND 5 KT. SEAS 2 TO 3 FT.
MON
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 8 FT. SHOWERS.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-191500-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 8 FT. WAVE DETAIL: S 8 FT AT 7 SECONDS AND W 4 FT AT
4 SECONDS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 6 TO
7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND W 4 FT AT 5 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND W 3 FT AT
5 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SE 1 FOOT AT
13 SECONDS.
SAT NIGHT
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 6 TO 7 FT, SUBSIDING TO
4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND W
4 FT AT 6 SECONDS, BECOMING SW 5 FT AT 8 SECONDS AND W 3 FT AT
6 SECONDS.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
7 TO 10 FT. SHOWERS.
TUE
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-191500-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1005 PM EDT THU JUN 18 2026
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
8 TO 9 FT, SUBSIDING TO 6 TO 8 FT. WAVE DETAIL: SW 8 FT AT
7 SECONDS AND S 2 FT AT 4 SECONDS, BECOMING SW 8 FT AT 8 SECONDS
AND S 2 FT AT 4 SECONDS.
FRI
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW
6 FT AT 7 SECONDS AND E 1 FOOT AT 7 SECONDS.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. WAVE DETAIL: S 7 FT AT 6 SECONDS AND SW 6 FT AT
9 SECONDS.
SAT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS.
SAT NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT,
SUBSIDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: SW 6 FT AT
7 SECONDS, BECOMING S 4 FT AT 7 SECONDS AND NW 3 FT AT 5 SECONDS.
SUN AND SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS AND NW 2 FT AT 4 SECONDS.
MON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
7 TO 10 FT. SHOWERS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT
WWW.WEATHER.GOV/BOSTON
YOU CAN FOLLOW US ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV
YOU CAN FOLLOW US ON TWITTER AT
@NWSBOSTON
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page